<template>
    <div>
        <!-- 面包屑导航 -->
         <el-breadcrumb separator-class="el-icon-arrow-right">
           <el-breadcrumb-item :to="{ path: '/' }">首页</el-breadcrumb-item>
           <el-breadcrumb-item>数据统计</el-breadcrumb-item>
           <el-breadcrumb-item>数据报表</el-breadcrumb-item>
        </el-breadcrumb>
       <el-card>
            <!-- 准备dom元素 -->
        <div id="main" style="width: 600px;height:400px;"></div>
       </el-card>
    </div>
</template>

<script>
import echarts from 'echarts'
import _ from 'loadsh'
export default {
  data () {
    return {
      options: {
        title: {
          text: '用户来源'
        },
        tooltip: {
          trigger: 'axis',
          axisPointer: {
            type: 'cross',
            label: {
              backgroundColor: '#E9EEF3'
            }
          }
        },
        grid: {
          left: '3%',
          right: '4%',
          bottom: '3%',
          containLabel: true
        },
        xAxis: [
          {
            boundaryGap: false
          }
        ],
        yAxis: [
          {
            type: 'value'
          }
        ]
      }
    }
  },
  // mounted钩子函数发生阶段dom元素可以使用
  async mounted () {
    // 页面初始化
    var myChart = echarts.init(document.getElementById('main'))
    // 指定图表的配置项和数据
    // 获取报表信息
    const data = await this.$http.get('reports/type/1')
    console.log(data)
    const reportData = _.cloneDeep(data.data)
    const newData = _.merge(reportData, this.options)
    myChart.setOption(newData)
  }
}
</script>

<style lang="less" scoped>
</style>
